3v4l.org

run code in 300+ PHP versions simultaneously
<?php x=lambda n:('[P'if n==sum(map(lambda i:i if n%i==0and i!=n else 0,range(1,n)))else'[Imp')+'erfect]' ?>
Output for 5.3.0 - 5.3.22, 5.4.0 - 5.4.12
Parse error: syntax error, unexpected '=' in /in/HGkhQ on line 1
Process exited with code 255.
preferences:
170.26 ms | 1395 KiB | 43 Q